What is the largest known multi-perfect number (excluding the perfect numbers) ?
[2, 94; 3, 32; 5, 9; 7, 11; 11, 2; 13, 8; 17, 1; 19, 5; 23, 1; 29, 2; 31, 2; 37, 1; 43, 1; 53, 1; 59, 1; 61, 2; 67, 1; 71, 1; 73, 1; 83, 3; 97, 1; 107, 1; 127, 1; 181, 1; 191, 2; 331, 1; 353, 1; 487, 1; 521, 1; 607, 1; 1493, 1; 2609, 1; 385 1, 1; 5347, 1; 160967, 1; 524287, 1; 547889, 1; 1609669, 1; 2908363, 1; 6491257, 1; 420778751, 1; 947723521, 1; 2413941289, 1; 30327152671, 1]
is a very large $8$-perfect number which was given in the answer to this question :
Number $N>6$, such that $N-1$ and $N+1$ are primes and $N$ divides the sum of its divisors
- Is this the largest known multi-perfect number which is not perfect ?